C3 Exhaust Systems

[Don B.]

Re: C3 Exhaust Systems

Wow, thanks for that "exhaustive" explanation.

Sorry, long post, but bear with me.

NCRS Judging sheets for 68-72 for the exhaust is:

8 Originality, 7 Condition; Exhaust Pipes and Heat Riser. Also judged is the self-locking nuts at the exhaust manifold, the triangle clamp flange and donut.

6 Originality, 4 Condition; Exhaust Hangers (at transmission and at muffler) and all four Clamps. Also judged is the ground straps and fastener and the bolts holding the muffler at the rear hanger.

8 Originality, 7 Condition; Mufflers. Also judged is the decals on the muffler.

6 Originality, 4 Condition; Exhaust Tips. Also judge decals.

According to the Judging Reference Manual, 8^th

[Patrick H.]

Re: C3 Exhaust Systems

I am still looking for NOS or gently used GM 2” mufflers.

Gary B

Aren’t we all?

PH

[Bill S.]

Re: C3 Exhaust Systems

Wern't the original pipes double wall tubing like all GM exhaust systems of the period?

[Rick N.]

Re: C3 Exhaust Systems

Wern't the original pipes double wall tubing like all GM exhaust systems of the period?

That's correct

[Don B.]

Re: C3 Exhaust Systems

Update: I ordered the system from Gardner today. They asked me to take pictures of everything I take off of the car (my system is original, rusty but original ) and they also want me to send some of the pipes to them. They particularly want photos of the clamps, which I plan to reuse if possible. I think they are in good shape. I now just have to find someone to re-chrome my tips. Would like to offer advice to me on what I should tell the people at the chrome place on how I want them done (to appear original)

I ended up ordering the aluminized system, I just cannot stand rust!

[James G.]

Re: C3 Exhaust Systems

I just had some bumpers plated at R&D Finishing in TN and I had them do them with only Nickel - Chrome, No copper and I left instructions not to highly polish or ROUND off the edges or buff away the profiles, Stripped with electrical current no grinding - there are fine scratches/tooling marks left.
I am very pleased with the results...